How to search for the last occurrence of a regular expression in a string in python?

Question

In python, I can easily search for the first occurrence of a regex within a string like this:

import re
re.search(\"pattern\", \"target_text\")

Answer 1

One approach is to use split. For example if you wanted to get the last group after ':' in this sample string:

mystr = 'dafdsaf:ewrewre:cvdsfad:ewrerae'
':'.join(mystr.split(':')[-1:])